Hinge.



J. GRONEK.

HINGE.

APPLICATION FILED SEPT. 19, 1911.

Patented June 11, 1912.

3 SHEETS-SHEET 1.

' Lion Grand Wm J. GRONEK.

APPLICATION FILED SEPT. 19, 1911.

HINGE.

Patented June 11, 1912.

3 SHEETS-BEBE? 2.

3mm Jahzranek J. GRONEK.

HINGE.

APPLIGATION IILED SEPT. 19, 1911.

Patented June 11,1912.

3 SHEEilS-SHEET 3.

UNITED STATES PATENT OFFICE JOHN GRONEK, OF PHILADELPHIA, PENNSYLVANIA.

HINGE.

Specification of Letters Patent.

Patented June 11, 1912.

Application filed September 19, 1911. Serial No. 650,288.

In carrylng out my invention 1t is my purpose to provlde a self closing hinge,

which may be applied to either a door or gate and which will cause the door and gate to slowly close by gravity, the said hinge being so arranged as to retain the door'or gate in its closed position without permitting the door or gate to rotate in either direction beyond the said closed position.

With the above recited objects and others of a similar nature in View the invention consists in the construction, combination and arrangement of parts set forth in and falling within the scope of the appended claims.

In the drawings, Figure 1 is a view of the improved hinge showing the same applied to double doors. Fig. 2 is a side elevation of a door hinge constructed in accordance with the present invention. Fig. 3 is a perspective view of one of the butts ofthe hinge. Fig. t is a similar view of the coacting but-t. Fig. 5 is a side elevation of the hinge as applied to a gate. Fig. 6 is a perspective view of one of the butts of the gate hinge.

Fig. 7 is a similar view of the coacting butt. Fig. 8 is an elevation partly in sectionof a modified form of the improvement. Fig. 9 is a similar view showing the gate in its open position. Fig. 10 is an elevation of the gate post. Fig. 11 is a detail longitudinal section view taken upon the line m-a; of Fig. 8.

Referring now to the drawings in detail and particularly to Figs. 1 to 3 thereof, the numeral 1 designates a door hinge constructed in accordance with the present invention. The hinge comprises the usual butts 2 and 3 each having knuckles 3 and 4 which are connected together through the medium of the usual pin 5. In the general construction of hinges it is usual for one of the butts to be attached to the stationary member, such as the door casing and the opposite member to be attached to the door. The butts may be revolved upontheir pintle in either direction and in order to halt the swinging of the door the jamb is provided with a strip with which the door contacts. In quite a number of cases it is desirable to construct a hinge which will swing the door only to a predetermined point as for instance when double doors are employed and where a stop member, such as a post would form an obstruction, and it-is for this particular purpose that my improved door hinge has been devised. The knuckle 3 of the butt 2 in the present instance comprises a pair of sections each of which being suitably spaced away from'the other and each being cut or cast to provide a substantially horizontally straight portion, designated by the numeral 6. This portion of the rounded knuckle terminates approximately central of the butt and provides a vertically straight wall or edge 7, the said vertical wall terminating in an arcuate or curved port-ion designated by the numeral 8. It is, of course, to

be understood that the knuckles are cylindrical in cross section, and the arcuate or pending vertical wall 9, which cooperates with the vertically straight wall 7 of the .butt 2 and the lower extremity of the said knuckle, is rounded as at 10 to engage with the rounded or arcuate wall 8 of the knuckle of the butt 2. The rounded or arcuate walls of each of the knuckles is provided with teeth, as at 11, and the said teeth are adapted to serve as retarding means to prevent the violent contact of the vertical walls 9 and 7 when the doors swing by gravity to their closed position. It is obvious that the butt 2 carrying the door will be raised when the door is opened, andin order that the raising of the said door will not contact with the jamb of the door, only a portion of the knuckle of the butt 2 contacts with the arcuate wall 8 of the butt 2, as illustrated in the drawings and for this reason the wall 1.0 is provided with teeth only adjacent its connection with the vertical wall 9.

In the remaining figures of the drawing the hinge is illustrated for use in connection with gates and the gate 12 may, of course, revolve in either direction. The butts 13 and 14 of each of the hinges have their knuckles formed with inclined coacting walls designated by the numerals l5 and 16 respectively. The said walls are of a V shaped formation in front elevation and each of the said walls is provided with teeth as clearly shown in the figures of the drawings. By this arrangement it will be noted that when the gate is returned by gravity to its closed posit-ion the movement will .be slow and the gate will not swing in either direction after the same has been brought to its closed position.

From the above description taken in connection with the accompanying drawings the simplicity and the advantages of the hinge will, it is thought, be perfectly apparent to those skilled in the art to which such inventions appertain without further detailed description.

In Figs. 9 to 11, I have illustrated a still further modified form of the improvement. In these figures, the letter A designates a gate. The gate is preferably constructed of metal and comprises a pair of spaced straps B and G, the said straps having one of their extremities formed with knuckles D while the arms of the said straps are adapted to engage with the body of the gate proper. The knuckles D have their bores adjacent their lower ends enlarged and substantially V or cone shaped, the faces thus' provided adapted to coact with substantial V-shaped faces provided upon the enlargements E formed upon the gate posts F. By this arrangement it will be noted that when the knuckles of the straps are inserted upon the enlargements of the posts, the V or cone shaped faces of both of the members coacting will sustain the gate at a direct right acting edges and each of the said edges being provided with co-acting teeth.

2. A hinge comprising a pair of but-ts having knuckles and a pintle connecting the knuckles, and each of said knuckles being provided with inclined coacting faces substantially as and for the purpose set forth.

3. A hinge for the purpose set forth comprising a pair of butts having knuckles and a pintle connecting the knuckles, the knuckles of one of the butts being provided with a horizontal straight wall terminating in a central vertical wall, the remaining portion of the knuckle being curved upwardly to its connection with the butt and being provided with teeth, the knuckle of the second butt being formed with a coacting horizontal straight wall and a centrally arranged vertical wall having its remaining portion curved upward, the curved face of this knuckle being provided with teeth adjacent its connection with the vertical face thereof.

4. A hinge comprising a pair of butts having knuckles, a pintle connecting the knuckles, each of said knuckles being formed with a horizontal portion and a centrally arranged vertical portion, and the remainder of each of the knuckles being inclined upwardly toward their connections with the butts and being provided with teeth.

In testimony whereof I aflix my signature in presence of two witnesses.

J OHN GRONEK.

Witnesses:

EMJI. SoHURGo'r,

GEO. M. HoLooMB.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. l 

